Attaching means for container heads



Feb. 27, 1934. s M. JOHNSON 1,948,920

ATTACHING MEANS FOR CONTAINER HEADS Filed June 30, 1931 ATT'OR N EY MYQMPatented Feb. 27, 1934 UNITED STATES PATENT OFFICE 1,948,920 ATTACHINGMEANS FOR CONTAINER means 2 Claims.

This invention relates broadly to sheet metal containers and moreparticularly to a pail or can and means for attaching a cover thereto,the type of container to which the invention is best adapted being thatin which a curled edge is provided at the top of the container body,such as that shown in my PatentNo. 1,593,638, dated July 27, 1926.

A primary object of the invention is to provide top or head attachingmeans for a container such as that used for paint and the like by meansof which the cover may be secured in closing relation to the containerand which when removed permits the top of head to fit on the pail forthe purpose of keeping the contents free from air.

In carrying out these objects, the invention is susceptible of a widerange of modification without departing from the spirit or sacrificingany of the advantages of the claimed invention; there 2 being shown inthe drawing for illustrative purposes a preferred and practical form, inwhich:

Figure 1 is a perspective view of the upper portion of a pail equippedwith this improvement;

Fig. 2 is a top plan view; and

Fig. 3 is a detail sectional view.

In the accompanying drawing a pail 1 is shown having a closed bottom andan open top. The body portion of this pail is provided near its upperend with an outwardly extending hollow rib or corrugation 2 andextending circumferentially therearound. Above the corrugation 2 theupper end of the pail is formed with an outwardly extending curvedflange 3 having its lower edge folded inwardly to form a lip 4.

A sealing gasket 5 is mounted on the curved top portion of the flange 3which provides a seat for the curved sealing member or flange 7 of thetop or head 6 as shown clearly in Fig. 3.

Adapted to be fitted over the down curved flange 7 of the top 6 is anattachingring 10 constructed of resilient metal which enables the ringto be cammed over the rounded top surface of the flange '7 and to snapunder the shoulder s .of the flange 3 when the cover is applied to thepail. It is to be understood that this attaching member 10 is assembledwith the cover before the latter is applied to the pail.

A plurality of perforated lugs 12 are integrally formed with the downcurved flange 11 of the attaching ring 10. When the cover is applied tothe pail these lugs 12 assume the position shown in Fig. 3. Each lug hasan aperture 13 and said lugs are designed to coact with a small nail, orother pointed tool which is inserted through the opening in the lug andswung about the crest of the flange 11 as a fulcrum to disengage theinwardly curved edge of the flange 11 from the shoulder 8 of the flange3 and thereby effect removal of the cover from the pail.

It will thus be seen that when the attaching ring 10 is assembled on thetop 6 with the-gasket 5 in position to engage the curved portion offlange 3 the forcing down or camming of the ring 10 over the flange 3will compress the gasket and hermetically seal the container. This ing65 ring which takes the place of the ordinary ring seal which latter hasto be broken to be removed, is opened by means of the tool as above setforth and without breakage and when the top is taken off the attachingring 10 may be separated therefrom and the top reinserted to protect thecon-- tents of the container.

Without further description it is thought that the features andadvantages of the invention will be readily apparent to those skilled inthe art, and it will, of course, be understood that changes in the form,proportion and minor details of construction may be resorted to, withoutdeparting from the spirit of the invention or its scope as claimed.

I claim:

1. A container body having at its top an outwardly and downwardly curvedflange with its edge presenting a shoulder spaced from the container, anoutwardly bulged rib formed in said container and positioned adjacentthe top thereof, the walls of said rib being at an angle with respect toeach other, a top for said container body having a depressed portion tofit into the open top of said container body and having a curved flangeoverlying the body flange, a gasket 90 between said flanges, atransversely curved sealing ring shaped to fit over said top flange andhaving an inwardly curved flange engageable beneath the shoulder of thecontainer flange and bent to lie within the space defined by the shoul-.95 der and container when assembled, said 'ring flange having aplurality of lugs bent to friction ally engage the upper angular portionof said rib and thence extended inwardly, and each of said lugs havingan aperture, a wall of which is alined with the lower angular portion ofsaid rib whereby upon insertion of a tool within the aperture foroutward bending of said lug, said lower angular portion will function asa fulcrum for said 1% tool.

2. A container body having at its top an outwardly and downwardly curvedflange with its edge presenting a shoulder spaced from the con-- tainer,an outwardly bulged rib formed in said no by the shoulder and containerwhen assembled, said ring'fiange having a plurality of lugs bent tofrictionally engage the upper portion of said rib for normally holdingsaid flange closely to said shoulder.

SMITH M. JOEWSQN.

